In this week's Election Tracking Poll, in addition to asking the vote-choice question with only Clinton and Trump as options, we also randomly tested two additional vote-choice questions from June 2 through June 5 to better understand support for third-party candidates.

In the first alternative, we asked about Clinton, Trump, Gary Johnson (the Libertarian) and Jill Stein (the Green Party candidate) as explicit options with their party affiliation. The results from this question among registered voters show Trump at 40 percent, Clinton at 39 percent, Johnson at 9 percent and Stein at 4 percent; 8 percent did not answer the question.